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September weather forecast in New Plymouth

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30 days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Sun

Sunday

Mon

Monday

Tue

Tuesday

Wed

Wednesday

Thu

Thursday

Fri

Friday

Sat

Saturday

31 August, sun

	765 mmHg		77%
	7.6 m/s		+14

31 August, Sunday. day, 13°; night, 10°; clear

1 September, mon

	764 mmHg		79%
	7.5 m/s		+14

1 September, Monday. day, 13°; night, 11°; partly cloudy

2 September, tue

	762 mmHg		79%
	8.3 m/s		+14

2 September, Tuesday. day, 13°; night, 11°; partly cloudy

3 September, wed

	763 mmHg		79%
	8.2 m/s		+14

3 September, Wednesday. day, 13°; night, 10°; rain

4 September, thu

	762 mmHg		78%
	8.8 m/s		+14

4 September, Thursday. day, 13°; night, 11°; rain

5 September, fri

	762 mmHg		80%
	9.7 m/s		+14

5 September, Friday. day, 13°; night, 11°; rain

6 September, sat

	763 mmHg		79%
	8.5 m/s		+14

6 September, Saturday. day, 13°; night, 11°; partly cloudy

7 September, sun

	763 mmHg		79%
	8.3 m/s		+14

7 September, Sunday. day, 13°; night, 10°; clear

8 September, mon

	762 mmHg		77%
	8.2 m/s		+14

8 September, Monday. day, 13°; night, 10°; clear

9 September, tue

	761 mmHg		77%
	8.5 m/s		+14

9 September, Tuesday. day, 13°; night, 10°; partly cloudy

10 September, wed

	761 mmHg		79%
	9.1 m/s		+13

10 September, Wednesday. day, 13°; night, 10°; rain

11 September, thu

	762 mmHg		79%
	8.5 m/s		+14

11 September, Thursday. day, 13°; night, 10°; clear

12 September, fri

	763 mmHg		77%
	8.39 m/s		+14

12 September, Friday. day, 13°; night, 11°; partly cloudy

13 September, sat

	763 mmHg		79%
	8.7 m/s		+14

13 September, Saturday. day, 13°; night, 11°; rain

14 September, sun

	763 mmHg		80%
	8.5 m/s		+14

14 September, Sunday. day, 13°; night, 11°; rain

15 September, mon

	762 mmHg		81%
	8.7 m/s		+13

15 September, Monday. day, 13°; night, 11°; rain

16 September, tue

	761 mmHg		81%
	8.6 m/s		+14

16 September, Tuesday. day, 13°; night, 11°; rain

17 September, wed

	760 mmHg		80%
	9 m/s		+14

17 September, Wednesday. day, 13°; night, 11°; rain

18 September, thu

	761 mmHg		78%
	8.89 m/s		+14

18 September, Thursday. day, 13°; night, 11°; rain

19 September, fri

	762 mmHg		78%
	8.6 m/s		+14

19 September, Friday. day, 13°; night, 11°; clear

20 September, sat

	762 mmHg		78%
	8 m/s		+14

20 September, Saturday. day, 13°; night, 11°; clear

21 September, sun

	762 mmHg		79%
	8.1 m/s		+14

21 September, Sunday. day, 13°; night, 11°; clear

22 September, mon

	762 mmHg		80%
	7.9 m/s		+14

22 September, Monday. day, 13°; night, 11°; rain

23 September, tue

	762 mmHg		82%
	7.8 m/s		+14

23 September, Tuesday. day, 13°; night, 12°; overcast

24 September, wed

	761 mmHg		81%
	8.8 m/s		+14

24 September, Wednesday. day, 14°; night, 11°; rain

25 September, thu

	762 mmHg		78%
	8.5 m/s		+14

25 September, Thursday. day, 13°; night, 11°; partly cloudy

26 September, fri

	763 mmHg		80%
	8.7 m/s		+14

26 September, Friday. day, 13°; night, 11°; rain

27 September, sat

	762 mmHg		80%
	8.3 m/s		+14

27 September, Saturday. day, 13°; night, 11°; rain

28 September, sun

	762 mmHg		79%
	8.8 m/s		+14

28 September, Sunday. day, 14°; night, 11°; rain

29 September, mon

	761 mmHg		81%
	8.7 m/s		+14

29 September, Monday. day, 14°; night, 11°; rain

30 September, tue

	762 mmHg		81%
	8.8 m/s		+14

30 September, Tuesday. day, 13°; night, 11°; rain

1 October, wed

	761 mmHg		81%
	9.39 m/s		+14

1 October, Wednesday. day, 13°; night, 12°; rain

2 October, thu

	761 mmHg		81%
	9 m/s		+14

2 October, Thursday. day, 14°; night, 12°; rain

3 October, fri

	761 mmHg		79%
	8.7 m/s		+14

3 October, Friday. day, 13°; night, 11°; rain

4 October, sat

	760 mmHg		80%
	9.39 m/s		+14

4 October, Saturday. day, 13°; night, 11°; rain

Average data for 10 years

New Plymouth September

6

sunny days

17

days with precipitation

8

cloudy days

6 sunny days; 17 days with precipitation; 8 cloudy days;

79

%

air humidity

6.2

m/s

WindSW

180

mm of precipitation

(10% of annual average)

+14

°C

Water temperature

air humidity 79%; 180 millimeters of precipitation (10% of annual average); Wind south-westerly 6.2 Meters per second; Water temperature +14°

Weather graphs for September

TemperatureWater temperaturePrecipitation chance, %Humidity, %Wind, m/sPressure, mmHg

SW

S

S

S

S

SW

SW

SW

S

S

S

SW

SW

SW

SW

W

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

SW

S

SW

1

Average data for 10 years

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

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26

27

28

29

30

Daytime temperature

Night-time temperature

Cities near you

Wellington
Auckland
Palmerston North
Tauranga
Nelson
Hamilton
Picton
Whangarei
Rotorua

Cities with similar weather in September

Helsinki
Riga
Tallinn
Stockholm
Cholpon-Ata
Oslo
Yurmala
Palanga
Dublin

The weather forecast for September 2025 is based on historical data from the past 10 years.

In September, the weather in New Plymouth is typically warm. Average daily high temperature in September is about 13 degrees above zero. On average, New Plymouth has 17 rainy, 6 sunny, 6 partly cloudy, and 1 cloudy day in September. The rains are usually heavy. September as well as May, June, July, and August is considered the most uncomfortable time to visit New Plymouth.

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